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Equilibrium-line Altitudes of Late Quaternary Glaciers in the Southern Alps, New Zealand

  • Stephen C. Porter (a1)
Abstract
Abstract

Equilibrium-line altitudes (ELA's) of former glaciers in the Tasman River-Lake Pukaki drainage basin of the Southern Alps were reconstructed from glacial-geologic data on former ice limits by using an assumed accumulation-area ratio of 0.6 ± 0.05. Late Holocene (Neoglacial) ELA's were depressed 140 m below present levels, whereas those of four late Pleistocene ice advances were depressed 500 m (Birch Hill), 750 m (Tekapo), 875 m (Mt. John), and 1050 m (Balmoral). Reconstructed ELA gradients are approximately parallel to one another and range from 19 to 23 m km−1. Although vertical movement on active faults and isostatic tilting due to deglaciation have both contributed to modification of reconstructed ELA gradients from their original values, the maximum resulting effect probably amounts to less than 2.0 m km−1 and is undetectable from present data.

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C.J. Burrows , (1973). Studies on some glacial moraines in New Zealand-2. Ages of moraines of the Mueller, Hooker, and Tasman Glaciers (S79). New Zealand Journal of Geology and Geophysics 16, 831 855.

G.H. Denton , Wibjörn Karlén , (1973). Holocene climatic variations-their pattern and possible cause. Quaternary Research 3, 155 205.

W.H. Mathews , (1967). Profiles of late Pleistocene glaciers in New Zealand. New Zealand Journal of Geology and Geophysics 10, 146 163.

V.R. McGregor , (1967). Holocene moraines and rock glaciers in the central Ben Ohau Range, south Canterbury, New Zealand. Journal of Glaciology 6, 737 748.

Gunnar Østrem , (1966). The height of the glaciation limit in southern British Columbia and Alberta. Geografiska Annaler 48, A 126 138.

S.C. Porter , (1970). Quaternary glacial record in Swat Kohistan, West Pakistan. Geological Society of America Bull 81, 1421 1446.

R.P. Suggate , N.T. Moar , (1970). Revision of the chronology of the late Otira glacial. New Zealand Journal of Geology and Geophysics 13, 742 746.

Peter Wardle , (1970). Pleistocene snowlines in the Fox Glacier area. New Zealand Journal of Geology and Geophysics 13, 560.

Peter Wardle , (1973). Variations of glaciers of Westland National Park and the Hooker Range, New Zealand. New Zealand Journal of Botany 11, 349 388.

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Quaternary Research
  • ISSN: 0033-5894
  • EISSN: 1096-0287
  • URL: /core/journals/quaternary-research
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